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ARM vs. UMC: Arm Holdings vs. United Microelectronics Stock Comparison

How do Arm Holdings (ARM) and United Microelectronics (UMC) stack up? This page sets them side by side across company profile, performance and risk, profitability, growth, financial strength, dividends, and valuation, with selected fundamentals also measured against each stock's industry-group peers.

Company Profile

Arm Holdings (ARM) and United Microelectronics (UMC) are both classified in the Semiconductors sub-industry within the broader Semiconductors & Semiconductor Equipment industry, placing them in the closest GICS peer bucket.

United Microelectronics (UMC) has more than two decades of public-market history since September 19, 2000, whereas Arm Holdings (ARM) listed on September 14, 2023 and has a much shorter record to draw on.

Both Arm Holdings (ARM) and United Microelectronics (UMC) trade as ADRs — their core financials are comparable, but keep FX, depositary-program fees, and dividend withholding in view for each.

Company profile comparison for Arm Holdings (ARM) and United Microelectronics (UMC)
Profile ItemARMUMC
NameArm Holdings plc ADRUnited Microelectronics Corp. ADR
Country/RegionUnited KingdomTaiwan
GICS SectorInformation TechnologyInformation Technology
GICS Industry GroupSemiconductors & Semiconductor EquipmentSemiconductors & Semiconductor Equipment
GICS IndustrySemiconductors & Semiconductor EquipmentSemiconductors & Semiconductor Equipment
GICS Sub-IndustrySemiconductorsSemiconductors
Market Capitalization186.84 billion USD34.73 billion USD
CurrencyUSDUSD
ExchangeNasdaqNYSE
Listing DateSeptember 14, 2023September 19, 2000
Security TypeADRADR

Price Performance

Cumulative Growth

ARM
UMC
GSPC
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Arm Holdings (ARM) vs. United Microelectronics (UMC), with S&P 500 (GSPC) for reference: Growth of a $10,000 investment over the past five years. Adjusted for dividends and splits.

Trailing Returns

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Trailing total returns for Arm Holdings (ARM) and United Microelectronics (UMC). Returns over one year are annualized.

Calendar-Year Returns

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Calendar-year total returns for Arm Holdings (ARM) and United Microelectronics (UMC). Each bar is that year's total return, measured year-end to year-end.

Performance Metrics

Price performance metrics for Arm Holdings (ARM) and United Microelectronics (UMC)
MetricARMUMC
Total Return (1Y)23.60%102.63%
Total Return (3Y, Annualized)53.99%31.57%
Total Return (5Y, Annualized)--11.51%

Risk Profile

Drawdown History

ARM
UMC
GSPC
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Arm Holdings (ARM) vs. United Microelectronics (UMC), with S&P 500 (GSPC) for reference: Drawdown from the running peak over the past five years. Each line shows the decline from its prior peak; 0% marks a new high.

Return Distribution

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Distribution of monthly total returns for Arm Holdings (ARM) and United Microelectronics (UMC). Each bar is the share of months whose return fell in that 5% bucket.

Risk Metrics

Risk profile metrics for Arm Holdings (ARM) and United Microelectronics (UMC)
MetricARMUMC
Volatility (1Y, Annualized)82.24%67.94%
Beta (5Y)3.921.77
Max Drawdown (5Y)-62.06%-54.30%
Avg. Volume (3M)5.05M11.82M

Risk-Adjusted Performance

Risk-Return Positioning

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ARM and UMC are plotted by 1-year volatility (risk) and 1-year return. The dashed Capital Allocation Line runs from the risk-free rate through the shared industry median.

Risk-Adjusted Metrics

Risk-adjusted metrics for Arm Holdings (ARM) and United Microelectronics (UMC)
MetricARMUMC
Sharpe Ratio (1Y)0.231.45
Sortino Ratio (1Y)0.382.35

Profitability

ROE (TTM)

Both Arm Holdings (ARM) at 11.35% and United Microelectronics (UMC) at 20.37% land near their industries’ usual ROE ranges, so capital efficiency looks broadly in line with peers on both sides.

ARM

Semiconductors & Semiconductor Equipment industry group

11.35%

Max
52.82%
Q3
22.26%
ARM
11.35%
Median
10.58%
Q1
1.29%
Min
-16.89%

UMC

Semiconductors & Semiconductor Equipment industry group

20.37%

Max
52.82%
Q3
22.26%
UMC
20.37%
Median
10.58%
Q1
1.29%
Min
-16.89%
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Arm Holdings (ARM) vs. United Microelectronics (UMC): A comparison of their ROE against the Semiconductors & Semiconductor Equipment industry group benchmark.

Net Margin (TTM)

United Microelectronics (UMC) at 31.95% retains a top-quartile share of revenue as profit, ahead of Arm Holdings (ARM) at 17.13%, which keeps about the industry-typical share.

ARM

Semiconductors & Semiconductor Equipment industry group

17.13%

Max
63.80%
Q3
28.36%
ARM
17.13%
Median
11.44%
Q1
0.90%
Min
-37.77%

UMC

Semiconductors & Semiconductor Equipment industry group

31.95%

Max
63.80%
UMC
31.95%
Q3
28.36%
Median
11.44%
Q1
0.90%
Min
-37.77%
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Arm Holdings (ARM) vs. United Microelectronics (UMC): A comparison of their net margin against the Semiconductors & Semiconductor Equipment industry group benchmark.

Operating Margin (TTM)

Both Arm Holdings (ARM) at 13.93% and United Microelectronics (UMC) at 25.09% run core operations about as efficiently as their industries’ norm — neither stands out on operating profitability.

ARM

Semiconductors & Semiconductor Equipment industry group

13.93%

Max
58.66%
Q3
30.23%
Median
15.91%
ARM
13.93%
Q1
7.54%
Min
-25.74%

UMC

Semiconductors & Semiconductor Equipment industry group

25.09%

Max
58.66%
Q3
30.23%
UMC
25.09%
Median
15.91%
Q1
7.54%
Min
-25.74%
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Arm Holdings (ARM) vs. United Microelectronics (UMC): A comparison of their operating margin against the Semiconductors & Semiconductor Equipment industry group benchmark.

Profitability Metrics

Profitability metrics for Arm Holdings (ARM) and United Microelectronics (UMC)
MetricARMUMC
ROE (TTM)11.35%20.37%
ROA (TTM)5.50%5.79%
Net Margin (TTM)17.13%31.95%
Operating Margin (TTM)13.93%25.09%
Gross Margin (TTM)97.44%31.72%

Growth

Revenue Growth

Both Arm Holdings (ARM) at 22.79% and United Microelectronics (UMC) at 2.26% land near their industries' usual revenue growth ranges, so top-line momentum looks broadly in line with peers on both sides.

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Arm Holdings (ARM) vs. United Microelectronics (UMC): A comparison of their Revenue Growth across different time periods.

EPS Growth

Both Arm Holdings (ARM) at 13.33% and United Microelectronics (UMC) at -12.57% land near their industries' usual EPS growth ranges, so bottom-line momentum looks broadly in line with peers on both sides.

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Arm Holdings (ARM) vs. United Microelectronics (UMC): A comparison of their EPS Growth across different time periods.

Growth Metrics

Growth metrics for Arm Holdings (ARM) and United Microelectronics (UMC)
MetricARMUMC
Revenue Growth (YoY)22.79%2.26%
Revenue Growth (3Y CAGR)22.46%-5.19%
EPS Growth (YoY)13.33%-12.57%
EPS Growth (3Y CAGR)18.51%-21.92%

Financial Strength

Current Ratio (MRQ)

United Microelectronics (UMC) at 3.27 keeps current ratio within its industry’s typical mid-range, while Arm Holdings (ARM) at 6.35 sits above its industry’s typical mid-range — comfortable liquidity, though possibly with more idle current assets relative to peers.

ARM

Semiconductors & Semiconductor Equipment industry group

6.35

Max
10.33
ARM
6.35
Q3
5.62
Median
3.33
Q1
2.35
Min
1.03

UMC

Semiconductors & Semiconductor Equipment industry group

3.27

Max
10.33
Q3
5.62
Median
3.33
UMC
3.27
Q1
2.35
Min
1.03
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Arm Holdings (ARM) vs. United Microelectronics (UMC): A comparison of their current ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

Debt / Equity (MRQ)

Both Arm Holdings (ARM) at 0.06 and United Microelectronics (UMC) at 0.17 fund their balance sheets with roughly industry-typical debt-to-equity mixes.

ARM

Semiconductors & Semiconductor Equipment industry group

0.06

Max
1.46
Q3
0.65
Median
0.27
ARM
0.06
Q1
0.04
Min
0.00

UMC

Semiconductors & Semiconductor Equipment industry group

0.17

Max
1.46
Q3
0.65
Median
0.27
UMC
0.17
Q1
0.04
Min
0.00
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Arm Holdings (ARM) vs. United Microelectronics (UMC): A comparison of their debt-to-equity ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

Financial Strength Metrics

Financial strength metrics for Arm Holdings (ARM) and United Microelectronics (UMC)
MetricARMUMC
Current Ratio (MRQ)6.353.27
Debt / Equity (MRQ)0.060.17
Net Debt / EBITDA-2.77-0.60

Dividends

Dividend Yield (TTM)

Arm Holdings (ARM) pays no dividend (yield 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile United Microelectronics (UMC) reports a yield of 19.43%, ranking against industry peers normally.

ARM

Semiconductors & Semiconductor Equipment industry group

0.00%

Max
1.37%
Q3
0.65%
ARM
0.00%
Median
0.00%
Q1
0.00%
Min
0.00%

UMC

Semiconductors & Semiconductor Equipment industry group

19.43%

UMC
19.43%
Max
1.37%
Q3
0.65%
Median
0.00%
Q1
0.00%
Min
0.00%
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Arm Holdings (ARM) vs. United Microelectronics (UMC): A comparison of their dividend yield against the Semiconductors & Semiconductor Equipment industry group benchmark.

Dividend Payout Ratio (TTM)

Arm Holdings (ARM) pays no dividend (payout 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile United Microelectronics (UMC) reports a payout of 37.46%, ranking against industry peers normally.

ARM

Semiconductors & Semiconductor Equipment industry group

0.00%

Max
49.64%
Q3
21.71%
ARM
0.00%
Median
0.00%
Q1
0.00%
Min
0.00%

UMC

Semiconductors & Semiconductor Equipment industry group

37.46%

Max
49.64%
UMC
37.46%
Q3
21.71%
Median
0.00%
Q1
0.00%
Min
0.00%
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Arm Holdings (ARM) vs. United Microelectronics (UMC): A comparison of their payout ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

Dividend Metrics

Dividend metrics for Arm Holdings (ARM) and United Microelectronics (UMC)
MetricARMUMC
Dividend Yield (TTM)0.00%19.43%
Dividend Payout Ratio (TTM)0.00%37.46%

Valuation

P/E Ratio (TTM)

United Microelectronics (UMC) at 13.07 sits in the cheaper P/E ratio quartile, while Arm Holdings (ARM) at 200.71 trades above its peer range — a wide earnings-valuation gap relative to industry peers.

ARM

Semiconductors & Semiconductor Equipment industry group

200.71

ARM
200.71
Max
110.34
Q3
66.81
Median
37.02
Q1
23.96
Min
8.12

UMC

Semiconductors & Semiconductor Equipment industry group

13.07

Max
110.34
Q3
66.81
Median
37.02
Q1
23.96
UMC
13.07
Min
8.12
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Arm Holdings (ARM) vs. United Microelectronics (UMC): A comparison of their P/E ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

P/S Ratio (TTM)

United Microelectronics (UMC) at 0.13 sits in the cheaper P/S ratio quartile while Arm Holdings (ARM) at 34.20 prices above its industry range — a wide gap in sales valuation between them.

ARM

Semiconductors & Semiconductor Equipment industry group

34.20

ARM
34.20
Max
21.42
Q3
12.27
Median
5.76
Q1
2.73
Min
0.00

UMC

Semiconductors & Semiconductor Equipment industry group

0.13

Max
21.42
Q3
12.27
Median
5.76
Q1
2.73
UMC
0.13
Min
0.00
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Arm Holdings (ARM) vs. United Microelectronics (UMC): A comparison of their P/S ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

P/B Ratio (MRQ)

United Microelectronics (UMC) at 2.39 sits near its industry’s typical P/B ratio, while Arm Holdings (ARM) at 20.56 prices above its benchmark range — ARM looks rich relative to book.

ARM

Semiconductors & Semiconductor Equipment industry group

20.56

ARM
20.56
Max
14.06
Q3
7.44
Median
4.29
Q1
2.30
Min
0.20

UMC

Semiconductors & Semiconductor Equipment industry group

2.39

Max
14.06
Q3
7.44
Median
4.29
UMC
2.39
Q1
2.30
Min
0.20
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Arm Holdings (ARM) vs. United Microelectronics (UMC): A comparison of their P/B ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

Valuation Metrics

Valuation metrics for Arm Holdings (ARM) and United Microelectronics (UMC)
MetricARMUMC
P/E Ratio (TTM)200.7113.07
P/S Ratio (TTM)34.200.13
P/B Ratio (MRQ)20.562.39
Free Cash Flow Yield (TTM)0.61%129.43%